Problems from 2021 ICPC North America Regional Programming Contests (March 5 2022)

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
Archery Accuracy0.018711363526%6.9Harden
Average Character0.0054290176741%1.8Easyen
Black and White0.0759242218043%4.9Mediumen
Circle Bounce0.0020021511051%4.9Mediumen
Diagonals0.0018532046733%7.1Harden
Dorm Room Divide0.03580163420212%6.8Harden
Double Password0.0054165241358%1.6Easyen
Fail Them All!0.0089946411024%8.3Harden
Hopscotch 5000.1187864413922%7.3Harden
Overdraft0.0052995122541%2.1Easyen
Problem Set Construction0.01940804050%6.9Harden
Reversibly Cyclic Strings0.00568530845%3.2Mediumen
Rise and Fall0.0088112126824%4.6Mediumen
Scaling Recipe0.005189587246%1.9Easyen
Shortest Missing Subsequences0.0939436711732%5.9Harden
Square Bounce0.005031645433%6.3Harden
Tetris Generation0.0090121629724%6.0Harden
Tournament Seeding0.0322050722645%4.0Mediumen
Tree Hopping0.0289397328629%6.4Harden
Who Goes There?0.00119125240532%3.9Mediumen
XOR Island0.0029130110334%7.1Harden